Home / 666,100.98-919,226.61-364,288.50

Finding the Fourth Proportional to 666,100.98, 919,226.61 and 364,288.50

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Solution

The fourth proportional to 666,100.98, 919,226.61 and 364,288.50 is: 502,722.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,100.98 : 919,226.61 = 364,288.50 : x
  2. Step 2: Convert to fraction form
    666,100.98/919,226.61 = 364,288.50/x
  3. Step 3: Cross multiply
    666,100.98x = 919,226.61 × 364,288.50
  4. Step 4: Simplify right side
    666,100.98x = 334,863,682,916.99
  5. Step 5: Solve for x
    x = 334,863,682,916.99/666,100.98
  6. Step 6: Final answer
    x = 502,722.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.